Vacuum



FIG. 1 is a bottom perspective view of a vacuum showing my new design;

FIG. 2 is a front and left side perspective view thereof;

FIG. 3 is a rear and right side perspective view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a front elevation view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines in the FIG. 9 represent the boundary between claimed and unclaimed areas. The white areas inside the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a vacuum, as shown and described. 